Waters, Laura J. (2015) Recent developments in skin mimic systems to predict transdermal permeation. Current Pharmaceutical Design, 21 (20). pp. 2725-2732. ISSN 1381-6128

In recent years there has been a drive to create experimental techniques that can facilitate the accurate and precise prediction of transdermal permeation without the use of in vivo studies. This review considers why permeation data is essential, provides a brief summary as to how skin acts as a natural barrier to permeation and discusses why in vivo studies are undesirable. This is followed by an in-depth discussion on the extensive range of alternative methods that have been developed in recent years. All of the major ‘skin mimic systems’ are considered including: in vitro models using synthetic membranes, mathematical models including quantitative structure-permeability relationships (QSPRs), human skin equivalents and chromatographic based methods. All of these model based systems are ideally trying to achieve the same end-point, namely a reliable in vitro-in vivo correlation, i.e. matching non-in vivo obtained data with that from human clinical trials. It is only by achieving this aim, that any new method of obtaining permeation data can be acknowledged as a potential replacement for animal studies, for the determination of transdermal permeation. In this review the relevance, and potential applicability, of the various model systems will also be discussed.

Skin_mimics_review_22ndDec2014.pdf - Accepted Version

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